2a-21.3=a+1.7

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Solution for 2a-21.3=a+1.7 equation:


Simplifying
2a + -21.3 = a + 1.7

Reorder the terms:
-21.3 + 2a = a + 1.7

Reorder the terms:
-21.3 + 2a = 1.7 + a

Solving
-21.3 + 2a = 1.7 + a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-1a' to each side of the equation.
-21.3 + 2a + -1a = 1.7 + a + -1a

Combine like terms: 2a + -1a = 1a
-21.3 + 1a = 1.7 + a + -1a

Combine like terms: a + -1a = 0
-21.3 + 1a = 1.7 + 0
-21.3 + 1a = 1.7

Add '21.3' to each side of the equation.
-21.3 + 21.3 + 1a = 1.7 + 21.3

Combine like terms: -21.3 + 21.3 = 0.0
0.0 + 1a = 1.7 + 21.3
1a = 1.7 + 21.3

Combine like terms: 1.7 + 21.3 = 23
1a = 23

Divide each side by '1'.
a = 23

Simplifying
a = 23

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